Nonmendelian Inheritance Jan 2023

Which of these describes "Mendelian" inheritance?

• there is only one dominant and one recessive allele for the trait

• there are two alleles and both traits show up in the heterozygotes

• there are two alleles and there is a blend of the two traits in the heterozygotes

This type of inheritance pattern is a MIXTURE of both traits, like the old theory of blending

• incomplete dominance
• co-dominance
• complete dominance
• recessive pattern

This type of inheritance pattern shows BOTH traits in possible offspring:

• complete dominance
• incomplete dominance
• co-dominance
• Indomitable 

When two or more pairs of genes control one single trait. These traits usually show a range of phenotypes.

• Multiple Alleles

• Several Genes

• Polygenetic Traits

• Genotype

When more than two possible alleles for a trait exist in a population. You still only GET two alleles for the trait. Ex: rabbit fur color or blood types

• Polygenic traits

• Multiple Genes

• Multiple Alleles

• Polysaccharide

A calico cat shows both the traits for orange fur and black fur. What kind of inheritance pattern is this?

• Incomplete Dominance

• Co Dominance

• Sex-Linked

• Polygenic

A red flowered plant (RR) breeds with a White flowered plant (WW). The gene for petal color in these plants expresses incomplete dominance. What percentage of the offspring will have pink (RW) flowers?

• 0%

• 25%

• 50%

• 100%

A roan cow shows co-dominance in fur color (orange and white). What is the phenotype ratio expected if a roan cow and a roan steer mate together?

• 4: Orange and White
• 1: Orange : 1 White
• 2 Orange: 2 Orange and White: 0 White
• 1: Orange: 2 Orange and White: 1 White

What is the phenotype of a person with the genotype I^A i?

• type A

• type O

• AA

• OO

If two parents have type AB blood, what is the probability that their child will have type O blood?

• 0%

• 25%

• 50%

• 100%